The process would produce two useful by-products: unsulphonated lignin, a commercially valuable polymer, and xylose, a type of wood sugar used in dyeing and in foods for diabetics.

此生产过程将带出两种有用的副产品：一是具有商业价值的聚合物高活性无机酸木质素；另外是用在染色和糖尿病患者食物中的木糖。

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Here, several hundred villagers tend fields of towering green sugar cane and cassava plants, sinking wells for water and chopping wood for fuel.

当地缺医少药。 在这里，数百名村民守着成片青青的甘蔗和木薯田，挖井取水，砍柴生火。

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Bioethanol firms currently extract sugars from crops like grains and sugar beet, but some are developing technologies to extract energy from fibre such as wheat bran, straw or wood.

那些从事生物乙醇生产的公司目前已经普遍能够从谷物和甜菜等农作物中提取出糖的成份，但还有一些公司对此仍不满足，他们眼下正在致力于从包括麦麸、稻草以及木材在内的众多富含纤维的物质中获取能源。

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